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Search: Posts Made By: pmullen503
Forum: General Electric Discussions 03-20-2015, 09:12 PM
Replies: 29
Views: 409
Posted By pmullen503
I lost three planes in a week, two on one day...

I lost three planes in a week, two on one day last summer. Before that, I hadn't crashed a plane for a year and a half!

All planes have an expiration date; you just don't know when it is.
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 03-15-2015, 10:00 PM
Replies: 30
Views: 565
Posted By pmullen503
+1 on that. For the last couple years I've been...

+1 on that. For the last couple years I've been running Frsky gear. It logs the receiver voltage so you can see it over the course of the whole flight at 0.1 sec intervals. Bottom line is I am no...
Forum: General Electric Discussions 03-14-2015, 12:36 AM
Replies: 4
Views: 285
Posted By pmullen503
It doesn't matter. If the motor spins the wrong...

It doesn't matter. If the motor spins the wrong way, just swap any two.
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 03-13-2015, 08:06 PM
Replies: 30
Views: 565
Posted By pmullen503
The only advice I can add is that if you have a...

The only advice I can add is that if you have a club nearby, see what TX's are popular there. That way you would be able to get some help locally with programming. Newer transmitters (including the...
Forum: General Electric Discussions 03-09-2015, 03:58 PM
Replies: 5
Views: 164
Posted By pmullen503
Here is a build going on that has scale retracts...

Here is a build going on that has scale retracts and folding wings: http://www.rcgroups.com/forums/showthread.php?t=1980545

Might be a useful reference.
Forum: General Electric Discussions 03-06-2015, 12:31 AM
Replies: 8
Views: 183
Posted By pmullen503
At an AUW of 60 oz you'd be at about 25 oz/sq ft...

At an AUW of 60 oz you'd be at about 25 oz/sq ft or 15.8 WCL. I'd stick with the minimal gear you can to come under that weight. Even that's heavy! Probably want to catapult launch it. At that...
Forum: General Electric Discussions 03-05-2015, 04:19 AM
Replies: 8
Views: 183
Posted By pmullen503
You'll have a wing loading of over 44 oz/sq...

You'll have a wing loading of over 44 oz/sq ft.(!) which is really heavy for a smallish model. Doing everything you can to get the weight down is a good idea.
Forum: Off Topic Chit Chat 03-02-2015, 06:57 PM
Replies: 22
Views: 364
Posted By pmullen503
Shipping anything to Canada is expensive. I have...

Shipping anything to Canada is expensive. I have a number of Canadian customers with US ship-to addresses. They are close enough to the border to drive down to pick up their orders. A typical...
Forum: General Electric Discussions 03-02-2015, 06:43 PM
Replies: 28
Views: 618
Posted By pmullen503
Try http://www.valuehobby.com/ in Addison Il. ...

Try http://www.valuehobby.com/ in Addison Il.

I've had good luck with them and standard shipping should be fast enough in the midwest.
Forum: Batteries & Chargers 02-26-2015, 10:47 PM
Replies: 9
Views: 257
Posted By pmullen503
I've used eneloops for years in a DX6i without...

I've used eneloops for years in a DX6i without problems. NiMH batteries do have lower resting voltage than alkaline batteries but I've never had issues running my TX for many hours between charges. ...
Forum: General Electric Discussions 02-25-2015, 08:47 PM
Replies: 19
Views: 298
Posted By pmullen503
I have also seen a number of Deans connectors...

I have also seen a number of Deans connectors melt in high amp applications (80+ amps). Usually they don't, even though I believe they are only rated to 60 amps.

I use XT-60 but like JPF noted,...
Forum: Warbird Electrics 02-22-2015, 08:30 PM
Replies: 4
Views: 180
Posted By pmullen503
There are several rules of thumb; for a warbird,...

There are several rules of thumb; for a warbird, 100-150 watts per pound. Or about a 1:1 thrust to weight. This means you'll have to have an estimate of the weight.

Once you have an approximate...
Forum: Scratch and Kit Built Aircraft 02-19-2015, 11:27 PM
Replies: 39
Views: 1,252
Posted By pmullen503
Really nice. Looking forward to this maiden (and...

Really nice. Looking forward to this maiden (and the Comet!)
Forum: Foamies 02-17-2015, 02:42 PM
Replies: 16
Views: 1,224
Posted By pmullen503
I've never tried to thin the product but you can...

I've never tried to thin the product but you can control the thickness by the number of coats you use. Compared to an iron-on film over a balsa covered surface, the Styrospray and paint can weigh...
Forum: General Electric Discussions 02-12-2015, 04:48 PM
Replies: 11
Views: 327
Posted By pmullen503
I've got probably 60 of those. I'd say 5% or so...

I've got probably 60 of those. I'd say 5% or so fail or jitter, usually right away. I "exercise" the servos for 15 minutes or so when I get them. I have TX that allows a program to cycle them...
Forum: Scratch and Kit Built Aircraft 02-10-2015, 11:29 PM
Replies: 85
Views: 2,653
Posted By pmullen503
Very nice.

Very nice.
Forum: Scratch and Kit Built Aircraft 02-09-2015, 02:23 PM
Replies: 85
Views: 2,653
Posted By pmullen503
Using a calculator that takes into account the...

Using a calculator that takes into account the size of the tail plane is a good idea except that smaller models need a much higher static margin than the "5 to 15%" recommended by the calculator....
Forum: Brushless Motor Construction 02-01-2015, 12:52 AM
Replies: 8
Views: 488
Posted By pmullen503
Interesting, any practical application for this?

Interesting, any practical application for this?
Forum: Off Topic Chit Chat 01-28-2015, 11:09 PM
Replies: 35
Views: 603
Posted By pmullen503
http://www.ncdc.noaa.gov/sotc/global/ This...

http://www.ncdc.noaa.gov/sotc/global/

This data doesn't seem to support that assertion.
Forum: Electric Ducted Fan Jets 01-23-2015, 11:49 PM
Replies: 13
Views: 456
Posted By pmullen503
Good as new, nice job!

Good as new, nice job!
Forum: Scratch and Kit Built Aircraft 01-23-2015, 01:34 PM
Replies: 85
Views: 2,653
Posted By pmullen503
Another triumph! Good luck on the maiden.

Another triumph! Good luck on the maiden.
Forum: Scratch and Kit Built Aircraft 01-08-2015, 06:15 PM
Replies: 5
Views: 276
Posted By pmullen503
That would be an interesting model! The...

That would be an interesting model!

The straight wing Attacker would probably make a better flying model.
Forum: Scratch and Kit Built Aircraft 01-08-2015, 02:15 PM
Replies: 5
Views: 276
Posted By pmullen503
How about the Supermarine 510? A tail dragging...

How about the Supermarine 510? A tail dragging jet! Only one engine too,

http://www.aviastar.org/pictures/england/supermarine_510.gif
Forum: Special Interest Aircraft 01-08-2015, 02:11 PM
Replies: 29
Views: 3,235
Posted By pmullen503
If you have a brushed ESC lying around, you can...

If you have a brushed ESC lying around, you can use that to send power to your rocket motor ignitor. Connect it to a unused channel.
Forum: Scratch and Kit Built Aircraft 01-08-2015, 02:05 PM
Replies: 10
Views: 398
Posted By pmullen503
I like to use CorelDraw. I import the plan,...

I like to use CorelDraw. I import the plan, resize it to my needs, then trace it (on another layer) to get a sharp, clean line. Once it's traced, you can save it as DXF (for laser cutters) or print...
Forum: Electric Ducted Fan Jets 01-06-2015, 11:32 PM
Replies: 13
Views: 456
Posted By pmullen503
Thanks for putting this up. Repairs are always...

Thanks for putting this up. Repairs are always more complex than the build and it helps to see your strategy.
Forum: Aerial Photography 01-05-2015, 02:22 PM
Replies: 10
Views: 385
Posted By pmullen503
I did that with an MD80 (external battery...

I did that with an MD80 (external battery connection with a servo connector) to make a "Game Camera". I used the motion detect feature with 2 cells from a defective 3s 2200mAh battery (rewired in...
Forum: Scratch and Kit Built Aircraft 01-05-2015, 02:06 PM
Replies: 17
Views: 401
Posted By pmullen503
https://maciekburdalski.files.wordpress.com/2009/0...

https://maciekburdalski.files.wordpress.com/2009/06/img_3730.jpg?w=510&h=340

A puzzle joint works very well in thin plywood. Good mechanical strength and aligns the parts. Works with CNC routers...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 12-31-2014, 02:18 AM
Replies: 14
Views: 1,279
Posted By pmullen503
Do you really need a color touch screen? Seems...

Do you really need a color touch screen? Seems like you give up a lot. I hope the QC is better than the 9x.
Forum: Scratch and Kit Built Aircraft 12-29-2014, 08:15 PM
Replies: 85
Views: 2,653
Posted By pmullen503
Wow, looks great and so light! Even with limited...

Wow, looks great and so light! Even with limited thrust, the low wing loading should allow it to fly nicely.
Showing results 1 to 30 of 500

 
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